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How does scale change on a normal Mercator chart?
Although the linear scale is equal in all directions around any point, thus preserving the angles and the shapes of small objects, the Mercator projection distorts the size of objects as the latitude increases from the equator to the poles, where the scale becomes infinite.
What is the maximum latitude of Mercator chart?
The poles cannot be represented on the Mercator projection. All meridians can be projected, but the upper and lower limits of latitude are at 89° north and 89° south.
How does the Mercator projection distort?
Mercator maps distort the shape and relative size of continents, particularly near the poles. The popular Mercator projection distorts the relative size of landmasses, exaggerating the size of land near the poles as compared to areas near the equator.
What is the scale factor for a Mercator projection?
From wikipedia’s Mercator projection: scale factor = secant (latitude) = 1 / cosine (latitude) Generally, divide map distance by the scale factor to get globe distance. But what about “long” lines, at different latitudes, what scale factor to use?
Are there parallels and meridians on the Mercator projection?
As in all cylindrical projections, parallels and meridians on the Mercator are straight and perpendicular to each other.
How do you calculate the scale factor of a map?
You are absolutely correct. From wikipedia’s Mercator projection: scale factor = secant (latitude) = 1 / cosine (latitude) Generally, divide map distance by the scale factor to get globe distance. But what about “long” lines, at different latitudes, what scale factor to use? According to EF Burkholder, for.
How to calculate the scale factor of a globe?
From wikipedia’s Mercator projection: scale factor = secant (latitude) = 1 / cosine (latitude) Generally, divide map distance by the scale factor to get globe distance.
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